二年级 科学 单元8 混合物练习
2nd Grade
•15 Qs
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二年级 科学 单元8 混合物练习
Quiz
•
Science
•
2nd Grade
•
Practice Problem
•
Medium
MONICA Moe
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪个图不是混合物?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什么是混合物?
把两种物体分开
由两种至多种不同的东西混合而成的物体
一定要用水把两种物体混合起来
能让电流通过
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪个方法不能把混合物分开?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
盐水要用哪个方法才能把盐和水分离？
蒸发
用水
用筛子
用磁铁
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
右图中混合物要如何分开？
用筛子。
用磁铁
用手
用漂浮法
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
右图中混合物要如何分开？
用筛子。
用磁铁
用手
用漂浮法
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
右图中混合物要如何分开？
用筛子。
用磁铁
用手
用漂浮法
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